Yamaha Disklavier MX100A - Gps; Gt1;Gt2;Gt7

I-18
GPS
The switch box is mounted on the treble side under the keybed.
Front: Main power switch, silent volume, headphone jacks, reverb depth (from 97/10)
Side: Pitch switch (from 97/10)
Rear: MIDI IN, MIDI OUT, AUX IN, AUX OUT
GT1/GT2/GT7
The switch box is mounted on the treble side under the keybed.
Front: Main power switch, silent volume, headphone jacks, reverb depth
Side: Pitch switch